Washing machine
First Claim
1. A washing machine comprising:
- a washing tub to contain wash water therein;
a spin-drying tub rotatably set in the washing tub to contain clothes therein;
a spin-drying shaft which rotates the spin-drying tub;
a washing shaft which axially passes through and projects from a top end of the spin-drying shaft; and
a wobbling device coupled to a projected end of the washing shaft, which causes the clothes to wobble upward and downward to wash the clothes, wherein the wobbling device comprises;
a washboard installed at an interior lower portion of the spin-drying tub, which wobbles upward and downward, anda rotary blade, provided entirely under the washboard and spaced away from the washboard, which rotates in one direction by torque of the washing shaft to guide the wash water to an upper portion of the spin-drying tub.
1 Assignment
0 Petitions
Accused Products
Abstract
A washing machine includes a wobbling device having a rotary blade. The wobbling device causes a wobbling action of a washboard without rotating the washboard during a washing mode operation, and rotates the rotary blade in one direction to allow a sufficient amount of wash water to flow upward through an ascending water current guide and fall from an upper portion of a spin-drying tub onto clothes contained in the spin-drying tub, thus effectively washing the clothes. The washboard is installed at a lower portion in the spin-drying tub such that it wobbles upward and downward. The rotary blade is installed under the washboard, and is rotated in one direction by torque of a washing shaft. The rotary blade is fitted over a boss which couples a vertical rotary shaft of the wobbling device to the washing shaft, and is rotated by the torque of the washing shaft. The water current guide extends along a sidewall of the spin-drying tub from a lower end to an upper end of the spin-drying tub. Water currents generated from the rotary blade are guided to the upper portion of the spin-drying tub and fall from the upper portion to the lower portion of the spin-drying tub.
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Citations
27 Claims
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1. A washing machine comprising:
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a washing tub to contain wash water therein; a spin-drying tub rotatably set in the washing tub to contain clothes therein; a spin-drying shaft which rotates the spin-drying tub; a washing shaft which axially passes through and projects from a top end of the spin-drying shaft; and a wobbling device coupled to a projected end of the washing shaft, which causes the clothes to wobble upward and downward to wash the clothes, wherein the wobbling device comprises; a washboard installed at an interior lower portion of the spin-drying tub, which wobbles upward and downward, and a rotary blade, provided entirely under the washboard and spaced away from the washboard, which rotates in one direction by torque of the washing shaft to guide the wash water to an upper portion of the spin-drying tub. - View Dependent Claims (2, 3, 24)
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4. A washing machine comprising:
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a washing tub to contain wash water therein; a spin-drying tub rotatably set in the washing tub to contain clothes therein; a spin-drying shaft which rotates the spin-drying tub; a washing shaft which axially passes through and projects from a top end of the spin-drying shaft; and a wobbling device coupled to a projected end of the washing shaft, which causes the clothes to wobble upward and downward to wash the clothes, wherein the wobbling device comprises; a washboard installed at an interior lower portion of the spin-drying tub, which wobbles upward and downward; a rotary blade provided under the washboard, which rotates in one direction by torque of the washing shaft to guide the wash water to an upper portion of the spin-drying tub; an inclined rotary shaft arranged in an axial direction of the washing shaft at an angle of inclination; a first rotary unit which rotates in response to the torque of the washing shaft, having a first sloping surface inclined in a radial direction of the washing shaft at a set angle of inclination; a second rotary unit arranged to be rotated relative to the first rotary unit, having a second sloping surface which corresponds to the first sloping surface of the first rotary unit, and a hole which is axially formed in the second rotary unit and rotatably receives the inclined rotary shaft therein; an actuating pin installed to and rotates along with one of the washing shaft, the first rotary unit and the inclined rotary shaft; and a wobbling pin and a leveling pin provided on the second rotary unit at spaced positions, wherein the washboard is arranged outside the second rotary unit, and wobbles upward and downward in response to the actuating pin rotating in contact with the wobbling pin and is leveled in response to the actuating pin rotating in contact with the leveling pin. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A washing machine comprising:
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a washing tub to contain wash water therein; a spin-drying tub rotatably set in the washing tub to contain clothes therein; a wobbling device having a washboard for seating the clothes thereon, and a rotary blade provided at a bottom portion of the spin-drying tub and spaced away from the washboard, wherein the rotary blade is positioned entirely underneath the washboard; a drive motor which provides a rotating force; a rotating shaft which rotates and transfers the rotating force of the drive motor to the wobbling device, wherein the wobbling device levels the washboard and rotates the spin drying tub in response to rotating of the rotating shaft in one direction, and wobbles the washboard upward and downward to wash the clothes and rotates the rotary blade part to guide the wash water to an upper portion of the spin-drying tub in response to rotating of the rotating shaft in another direction. - View Dependent Claims (18, 19, 20, 21)
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22. A washing machine comprising:
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a washing tub to contain wash water therein; a spin-drying tub rotatably set in the washing tub to contain clothes therein; a wobbling device having a washboard for seating the clothes thereon, and a rotary blade provided at a bottom portion of the spin-drying tub and spaced away from the washboard, wherein the rotary blade is positioned entirely underneath the washboard, and wherein the rotary blade includes a circular base panel, and vanes regularly arranged on a lower surface of the circular base panel which extend in radial directions and generate wash currents; a drive motor which provides a rotating force; a rotating shaft which rotates and transfers the rotating force of the drive motor to the wobbling device, wherein the wobbling device levels the washboard and rotates the spin drying tub in response to rotating of the rotating shaft in one direction, and wobbles the washboard upward and downward to wash the clothes and rotates the rotary blade part to guide the wash water to an upper portion of the spin-drying tub in response to rotating of the rotating shaft in another direction; and an ascending water current guide provided in a sidewall of the spin-drying tub which extends from a lower end to an upper end of the spin-drying tub in a vertical direction, wherein the rotary blade is arranged at a lower end of the ascending water current guide, guides the wash water currents from the vanes to flow upward through the ascending water current guide, and causes the wash water currents to fall from an upper end of the ascending water current guide to a lower portion of the spin-drying tub.
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23. A washing machine comprising:
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a washing tub to contain wash water therein; a spin-drying tub rotatably set in the washing tub to contain clothes therein; a wobbling device having a washboard for seating the clothes thereon and a rotary blade provided at a bottom portion of the spin-drying tub, wherein the rotary blade includes a circular base panel, and vanes regularly arranged on a lower surface of the circular base panel which extend in radial directions and generate wash currents; a drive motor which provides a rotating force; a rotating shaft which rotates and transfers the rotating force of the drive motor to the wobbling device, wherein the wobbling device levels the washboard and rotates the spin drying tub in response to rotating of the rotating shaft in one direction, and wobbles the washboard upward and downward to wash the clothes and rotates the rotary blade part to guide the wash water to an upper portion of the spin-drying tub in response to rotating of the rotating shaft in another direction; and an ascending water current guide provided in a sidewall of the spin-drying tub which extends from a lower end to an upper end of the spin-drying tub in a vertical direction, wherein the rotary blade is arranged at a lower end of the ascending water current guide, guides the wash water currents from the vanes to flow upward through the ascending water current guide, and causes the wash water currents to fall from an upper end of the ascending water current guide to a lower portion of the spin-drying tub, wherein the wobbling device further comprises; a first rotary unit which rotates in response to torque of the rotating shaft, having a first sloping surface inclined in a radial direction of the rotating shaft at an angle of inclination; a second rotary unit arranged to be rotated relative to the first rotary unit, having a second sloping surface which corresponds to the first sloping surface and a hole axially formed in the second rotary unit at a set angle of inclination; an inclined rotary shaft rotatably arranged in the hole and projects from an upper end surface of the second rotary unit; an actuating pin which is installed to and rotates along with one of the inclined rotary shaft, the rotating shaft and the first rotary unit; and wobbling and leveling pins provided on the second rotary unit at spaced positions corresponding to rotating directions of the actuating pin, wherein the washboard wobbles in response to rotating of the actuating pin in contact with the wobbling pin, and is level in response to rotating of the actuating pin in contact with the leveling pin.
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25. A washing machine comprising:
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a washing tub to contain wash water therein; a spin-drying tub rotatably set in the washing tub to contain clothes therein; a wobbling device having a washboard for seating the clothes thereon, and a rotary blade provided at a bottom portion of the spin-drying tub and spaced away from the washboard, wherein the rotary blade is positioned entirely underneath the washboard; a drive motor which provides a rotating force; a rotating shaft which rotates and transfers the rotating force of the drive motor to the wobbling device, wherein the wobbling device wobbles the washboard, moves the clothes thereon in a vertical direction and rotates the rotary blade to guide the wash water to an upper portion of the spin-drying tub in response to rotating of the rotating shaft in one direction. - View Dependent Claims (26)
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27. A washing machine comprising:
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a washing tub to contain wash water therein; a spin-drying tub rotatably set in the washing tub to contain clothes therein, wherein the spin-drying tub has a cylindrical sidewall; a spin-drying shaft which rotates the spin-drying tub; a washing shaft which axially passes through and projects from a top end of the spin-drying shaft; and a wobbling device coupled to a projected end of the washing shaft, which causes the clothes to wobble upward and downward to wash the clothes, wherein the wobbling device comprises; a washboard installed at an interior lower portion of the spin-drying tub, which wobbles upward and downward, and a rotary blade, provided under the washboard and spaced away from the washboard, wherein the rotary blade rotates in one direction by torque of the washing shaft to guide the wash water to an upper portion of the spin-drying tub, and wherein the rotary blade is not mounted to the cylindrical wail of the spin-drying tub.
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Specification